MIC5013 Micrel Semiconductor, MIC5013 Datasheet - Page 10

• Manufacturer Part Number: MIC5013
• Description: Protected High- or Low-Side MOSFET Driver
• Manufacturer: Micrel Semiconductor

MIC5013
Applications Information
MIC5013
10mA
Control Input
100k
Opto-Isolator Performance
CR2943-NA102A
(GE)
4N35
Figure 8. Improved
33pF
15V
100k
1k
OFF
ON
(Continued)
MPSA05
24V
33k
100k
100k
100nF
MPSA05
To MIC5013 Input
330k
20k
Figure 9. 50-Ampere
Industrial Switch
100k
10k
1
2
3
4
Thresh
Source
Input
Sense
10
MIC5013
lated (100Hz to 20kHz), or where it is energized for only a
short period of time ( 25ms). If the load is left energized for
a long period of time (>25ms), the bootstrap capacitor will
discharge and the MIC5013 supply pin will fall to V+ = V
–1.4. Under this condition pins 3 and 4 will be held above V+
and may false trigger the over-current circuit. A larger
capacitor will lengthen the maximum “on” time; 1000 F will
hold the circuit up for 2.5 seconds, but requires more charge
time when the circuit is turned off. The optional Schottky
barrier diode improves turn-on time on supplies of less than
10V.
1N4148
Fault
Gate
Electronic Circuit Breaker
Gnd
V+
Figure 7. 10-Ampere
100k
8
7
6
5
20k
15k
10µF
1
2
3
4
Input
Thresh
Sense
Source
100
MIC5013
+
LOAD
24V
Fault
Gate
Gnd
5m
LVF-15 (RCD)
V+
8
7
6
5
10k
IRFP044 (2)
100
+
10µF
LOAD
12V
IRFZ40
22m
CPSL-3 (Dale)
July 2000
Micrel
DD